Apparatus for cooling and agitating air.



Patented June 24, I902.

E. F. PORTER. APPARATUS FOR comma AND .AGIITAITING AIR.

(Application filed Dec. 20, 1897.)

30 Model.)

UNTTED STATES PATENT OFFICE.

EDIVIN F. PORTER, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE BAY STATE ELECTRIC HEAT & LIGHT COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

APPARATUS FOR COOLING AND AGITATING AIR.

IECIFICATION forming part of Letters Patent No. 702,994, dated June 24, 1902.

Application filed December 20, 1897. Serial No. 662,540. (No model- To all 1071,0727, it may concern: minates in the hub F. WVithin said hollow Be itknown that I, EDWIN F. PORTER, a subshaft F is a hollow shaft I, secured at its outer ject of the Queen of Great Britain, residing at end to the hub F and passes rearwardly Boston, in the county of Suffolk and State of through the top of the chamber C, through 5 Massachusetts,l1aveinvented certain new and the stuffing-box J, and opens into the top of useful Improvements in Apparatus for Coolthe chamberB, and a suitable check-valve K ing and Agitating Air, of which the following closes the end of the hollow shaft within the is a specification. chamber B,whichis supported over the cham- My invention relates to an apparatus for her C by the stuffing-box J. An annular IO cooling and agitating air; and its object is to space is provided between the inner and outer bring a volume of air into contact with surshafts I and F, providing a passage G for the faces which have been artificially cooled and cooling medium to pass through the chamthen to circulate said air throughout an apartber C into the hollow blades H, from which ment for the purpose of lowering the temperit returns through the tubes L to the inner r5 ature. hollow shaft I and then to the chamber B, from In carrying out my invention I circulate a which it returns to the chamber A through cooling medium through a confining-chamthe ports B of the piston B, which ports are ber, thewalls of which form cooling-surfaces controlled by suitable flap-valves B which and with which the air is brought in contact, open as the plunger B ascends to allow the 20 lowered in temperature, and then circulated return medium to pass into the chamber A.

throughout the apartment to be cooled. To the top of the plunger B thereis pivotally My invention consists of certain novel feaconnected the connecting-rod B", which at its tures hereinafter described, and particularly upper end is pivotally connected to the copointed out in the claims. centric-crank B fixed fast on the hollow in- 25 In the accompanying drawings, whichillusner shaft I and adapted in the revolution of trate constructions in which my invention is the shaft to raise and depress the plunger B embodied, Figures 1 and 2 represent, respecin the chamber B, causing the circulation of tively, a rear and a side elevation of an apthe cooling medium from the chamber A paratus, with Fig. 2 partly in section to show through the chamber C, passage G, into the 30 the interior construction. Figs. 3 and a rephollow blades H, and then from said blades resent, respectively,perspective and side elereturning through the tubes L, hollow shaft vat-ions of a modified construction in which I, chamber B, back to the chamber A. As the coolingmedium is not circulated through the shaft F is operated by the motor E and the hollow blades, but through pipes forming the shaft I is fixed fast to the hub of the shaft 35 asurface andlocated in proximity to the fan. F, it follows that as the outer shaft F re- Fig. a detail sectional view of a fan in which volves the inner shaft I revolves, and with it the hollow blades are filled with a cooling the eccentric which operates the plunger B. medium. The fan in revolving operates the plunger in Referring to Figs. 1 and 2, within a suitthe chamber B through the connections pre 40 able hollow base A there is placed a suitable viously described, causing the cooling mecooling medium, and communicating with dium to circulate through the hollow blades, said medium and secured to said hollow base reducing the temperature, and thereby coolare two hollow chambers B and C. Upon one ing the air, which is agitated by the fan and side of the chamber C is a bracket .D, supcirculated throughout the apartment.

45 porting an electric or other motor E, (shown Referring now to Figs. 3 and 4, within the i in dotted lines,) which is adapted to revolve hollow chamber a there is placed a suitable the shaft F, which enters and communicates cooling medium, such as salt and ice, the with the upper end of the chamber C through brine of which passes up through the tube Z) the stuffing-box G, and its opposite end terinto and throughascreen 0, consisting of com municating pipes, and rearwardly through the pipe d to a suitable pump e, discharging the medium drawn through the pipe d through the valve 61, where it returns to the hollow chamber a as the plungerfof the pump moves upwardly and the valve f opens and the valve d closes. A suitable check-valve closes the lower end of the pipe d where it enters the pump to prevent return of the medium as the plunger ascends, but is adapted to open as the plungerf descends to allow the flow of the medium into the pump. A suitable connecting-rod g is pivotally connected to the eccentric-crank h and also to the piston-rod f fast on the shaft 2', which is operated by a suitable motorj, supported by the stand is, resting on the base a. On the front end of said shaft there is fixed fast the fan Z, having a number of blades which are adapted to revolve in the revolution of the fan Z. In this construction the fan in revolving through the connections previously described operates the pump, causing the circulation of the cooling medium through the screen,which cools the air as it passes through, being blown by the revolution of the fan, after which the air is circulated throughout the apartment for the purpose of lowering the temperature.

In Fig. 5 is illustrated in section two hollow blades H of a fan which communicates with a hollow hub H in which is fixed fast a' solid shaft H which may be operated by a suitable motor to cause the revolution of the blades H of the fan, which blades are secured fast, as shown, to the hub H In each blade there is an opening provided with a cover H for the purpose of removing and refilling the hollow blades with the cooling mediu m. In this construction there is no circulation of the cooling medium; but the same is retained permanently in the blades until exhausted, and then a new supply is substituted. In all the constructions the object is to cool the air in an apartment by means of a cooling medium. To accomplish this, I use a fan for the purpose of bringing air in the apartment into contact with metallic surfaces cooled by a cooling medium. Thus the temperature of the air is lowered and by the revolution of the fan circulated throughout case if the air were allowed to circulate against a cooling surface by means of its specific gravity and a more equable temperature is produced.

I do not'limit myself to the arrangement and construction shown, as the same may be varied without departing from the spirit of my invention.

Having thus ascertained the nature of my invention and set forth a construction embodying the same, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. In an apparatus of the class described, arotatable fan for creating a current .of air and having passages leading through the same, a receiver for containing a cooling medium, a chamber leading from said receiver and connected with the passages in said fan, a chamber leading to said receiver and connected with the passages in said fan, and means for forcing the cooling medium through the passages of the fan, the chambers and the receiver.

2. In an apparatus of the class described, a rotatable fan for creating a current of air, and having passages leading through the same, a receiver for containing a cooling medium, a chamber leading from said receiver and connected with the passages in said fan, a chamber leading to said receiver and connected with the passages of said fan, and a pump located in one of said chambers for forcing the cooling medium through the passages of the fan, the chambers and the receptacle.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 17th day of December, A. D. 1897.

EDWIN F. PORTER.

\Vitnesses:

A. L. MEssER, C. A. STEWART. 

